Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Giacomo Losi is a former Italian football defender, who played his entire professional career, from 1955 to 1969 for AS Roma. Though he was not a native of Rome, during the 15 seasons he played in the capital city, he was nicknamed "Core de Roma". In total he made 450 appearances with the giallorossi, a record which lasted for 38 years, until 31 January 2007, when Francesco Totti played his 451st match for the club.